CN215830724U

CN215830724U - Oil-gas separation structure and scroll compressor

Info

Publication number: CN215830724U
Application number: CN202122119482.0U
Authority: CN
Inventors: 谷武士; 汤熙华; 伍海浩; 李文华; 李继泰; 陈登科
Original assignee: Hunan Maigu Technology Co ltd; Shijiazhuang Guoxiang Transportation Equipment Co Ltd
Current assignee: Hunan Maigu Technology Co ltd; Shijiazhuang Guoxiang Transportation Equipment Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-15
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses an oil-gas separation structure and a scroll compressor, which comprise an exhaust pipe connected with a shell of the compressor, wherein the exhaust pipe comprises an oil-gas separation part positioned in an exhaust cavity in the shell and a connecting part positioned outside the shell, the shell is vertically connected with the oil-gas separation part, the oil-gas separation part is in a circular arc shape with an upward opening, and an oil discharge hole is formed in the bottom of the oil-gas separation part. The utility model can effectively separate refrigerant gas and oil through the oil-gas separation structure, so that the oil quantity discharged outwards by the compressor is reduced, the circulation quantity of the oil in a refrigerating system is reduced, the reduction of the heat exchange efficiency of the heat exchanger caused by the oil is avoided, the refrigerating efficiency of the system is improved, lubricating oil is kept to circulate only in the compressor, the oil circulation quantity of a lubricating system of the compressor is ensured, the compressor cannot be in failure due to oil shortage, each moving part is ensured to be effectively lubricated, the friction power consumption of the compressor is reduced, and the efficiency is increased.

Description

Oil-gas separation structure and scroll compressor

Technical Field

The utility model belongs to the technical field of compressors, and particularly relates to an oil-gas separation structure and a totally-enclosed scroll compressor with the same.

Background

The compressor is an important component for air conditioning and refrigeration. In the existing refrigerant cycle, lubricating oil enters the cycle along with the refrigerant, thereby affecting the refrigeration effect and also affecting the lubrication of the components in the compressor due to taking away a part of the lubricating oil. Use horizontal compressor as an example, because the stirring of rotor balancing piece in the oil bath, a large amount of oil drips are being mingled with to exhaust refrigerant gas, oil drips and participates in the refrigerant circulation and adsorbs at the heat exchanger internal surface along with refrigerant gas, the heat exchange efficiency of heat exchanger has been reduced, make refrigerating system's efficiency descend, and because a large amount of oil runs out the compressor, make the inside lack of oil of compressor, lead to each moving part of compressor to obtain effectual lubrication, the consumption of compressor also can increase, the wearing and tearing of part are aggravated simultaneously, make the compressor inefficacy. The scheme has low reliability and more faults.

The existing compressor has an oil-free separation structure on an exhaust structure, refrigerant gas is directly discharged from an exhaust pipe at the rear end of the compressor after being discharged to a shell from a scroll, and the exhaust pipe has no special structure, so that more lubricating oil is discharged out of the compressor.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide an oil-gas separation structure and a totally-enclosed scroll compressor with the same, and the oil-gas separation structure is designed at the exhaust pipe, so that oil drops are thrown outwards and separated from gas under the action of centrifugal force and gravity, and the oil drops are discharged from an oil outlet hole in the side wall of the lowest end of the exhaust pipe, and the purpose of oil-gas separation is achieved.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides an oil-gas separation structure, includes the blast pipe that links to each other with the casing of compressor, the blast pipe is including being located oil-gas separation portion in the exhaust chamber in the casing with be located connecting portion outside the casing, the casing with oil-gas separation portion links to each other perpendicularly, oil-gas separation portion is the ascending arc of opening and is equipped with the oil drain hole in the bottom.

Furthermore, the degree of the central angle occupied by the oil-gas separation part is 100-120 degrees.

Based on the oil-gas separation structure, the utility model further provides the scroll compressor.

Further, the scroll compressor comprises a housing, a frame and a partition plate arranged in the housing, a crankshaft rotationally limited on the frame and the partition plate, a motor arranged between the frame and the partition plate and driving the crankshaft to rotate, a movable disc and an oil suction pump respectively arranged at two ends of the crankshaft, a fixed disc arranged at the outer side of the frame and matched with the movable disc, and an air suction pipe communicated with an air suction cavity at the end of the housing.

Furthermore, an exhaust passage and an oil pool passage are respectively arranged at the top and the bottom of the partition plate.

The utility model has the beneficial effects that: through the oil-gas separation structure, can be effectively come with refrigerant gas and oil separation, make the outside exhaust oil mass of compressor reduce, reduce the circulation volume of oil in refrigerating system, avoid leading to the heat exchange efficiency of heat exchanger to reduce because of oil, the refrigeration efficiency of system has been improved, and keep lubricating oil only at compressor internal circulation, the compressor lubricating system oil circulation volume has been guaranteed, make the compressor can not break down because of the lack of oil, guarantee that each moving part has obtained effectual lubrication, reduce the friction consumption of compressor, and the efficiency is increased.

The present invention will be described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic illustration of a gas and oil separation configuration of the present invention;

FIG. 2 is a schematic view of the construction of the scroll compressor of the present invention;

FIG. 3 is a schematic view of the partition plate of the scroll compressor of FIG. 2 in accordance with the present invention.

In the drawings: 1. the oil-gas separator comprises a shell, 2 parts of an exhaust pipe, 2 parts of 1 part of an oil-gas separation part, 2 parts of a connecting part, 2 parts of 3 parts of an oil discharge hole, 3 parts of a rack, 4 parts of a separation plate, 4 parts of 1 parts of an exhaust passage, 4 parts of 2 parts of an oil pool passage, 5 parts of a crankshaft, 6 parts of a motor, 7 parts of a movable plate, 8 parts of a fixed plate, 9 parts of an oil suction pump, 10 parts of an air suction pipe.

Detailed Description

Referring to fig. 1, the present invention provides an oil-gas separation structure including a discharge pipe 2 connected to a casing 1 of a compressor. The exhaust pipe 2 structurally comprises an oil-gas separation part 2-1 located in an exhaust cavity in the shell 1 and a connecting part 2-2 located outside the shell 1. The oil-gas separation part 2-1 is vertically connected with the shell 1. The oil-gas separation part 2-1 is in the shape of an arc with an upward opening, and the bottom of the oil-gas separation part is provided with an oil discharge hole 2-3. The degree of the central angle occupied by the oil-gas separation part 2-1 is 100-120 degrees. The end of the connecting part 2-2 is provided with a joint so as to be connected with a matched copper pipe conveniently.

In the specific implementation, a refrigerant airflow inlet of the oil-gas separation part 2-1 is as close to the inner wall of the compressor shell as possible, a plurality of oil discharge holes 2-3 are formed in the outer side wall of the bottom of the exhaust pipe 2, separated oil drops fall into an oil pool at the bottom of the compressor from oil holes, and refrigerant gas is discharged out of the compressor along a main channel of the exhaust pipe.

During operation of the compressor, a refrigerant gas flow enters the oil-gas separation part 2-1 of the discharge pipe 2 from above the inside of the casing 1 and exits the compressor along the discharge passage. Because the oil-gas separation part 2-1 is arc-shaped, the air flow does circular motion in the channel at the moment, because the density of oil drops is greater than the density of refrigerant gas, the oil drops are thrown outwards and separated from the gas under the action of centrifugal force and gravity, and finally the oil drops are discharged from an oil discharge hole 2-3 on the side wall of the lowest end of the oil-gas separation part 2-1, so that the purpose of oil-gas separation is achieved.

Referring to fig. 2 and 3, based on the above oil-gas separation structure, the present invention further provides a scroll compressor, which includes a housing 1, a frame 3 and a partition plate 4 disposed in the housing, a crankshaft 5 whose two ends are rotatably limited on the frame 3 and the partition plate 4 by bearings, a motor 6 disposed between the frame 3 and the partition plate 4 and driving the crankshaft 5 to rotate, a movable plate 7 and an oil suction pump 9 disposed at two ends of the crankshaft 5, a fixed plate 8 disposed outside the frame 3 and cooperating with the movable plate 7 to form a compression chamber, an air suction pipe 10 communicating with the air suction chamber at one end of the housing 1, and an air discharge pipe 2 communicating with the air discharge chamber at the other end of the housing 1. The air suction cavity is positioned on the outer side of the fixed disc 8, and the air exhaust cavity is positioned on the outer side of the partition plate 4.

The top and the bottom of the partition plate 4 are respectively provided with an exhaust passage 4-1 and an oil pool passage 4-2.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. An oil-gas separation structure, includes blast pipe (2) that link to each other with casing (1) of compressor, its characterized in that: the exhaust pipe (2) comprises an oil-gas separation part (2-1) located in an exhaust cavity in the shell (1) and a connecting part (2-2) located outside the shell (1), the shell (1) is vertically connected with the oil-gas separation part (2-1), the oil-gas separation part (2-1) is in a circular arc shape with an upward opening, and an oil discharge hole (2-3) is formed in the bottom of the oil-gas separation part.

2. The oil-gas separation structure according to claim 1, wherein: the degree of the central angle occupied by the oil-gas separation part (2-1) is 100-120 degrees.

3. A scroll compressor comprising the oil-gas separation structure according to claim 1 or 2.

4. The scroll compressor of claim 3, wherein: the scroll compressor comprises a shell (1), a rack (3) and a partition plate (4) which are arranged in the shell, a crankshaft (5) which is limited in rotation on the rack (3) and the partition plate (4), a motor (6) which is arranged between the rack (3) and the partition plate (4) and drives the crankshaft (5) to rotate, a movable disk (7) and an oil suction pump (9) which are respectively arranged at two ends of the crankshaft (5), a fixed disk (8) which is arranged at the outer side of the rack (3) and matched with the movable disk (7) and an air suction pipe (10) which is communicated with an air suction cavity at the end part of the shell (1).

5. The scroll compressor of claim 4, wherein: and the top and the bottom of the partition plate (4) are respectively provided with an exhaust passage (4-1) and an oil pool passage (4-2).